2015 map card/navigation system update

I initiated a thread along these lines about 5 years ago when we only had a few less than 3,000 members.
I have a 2015 Pro.
Anyhow, there’s been a great infusion of smart and technology proficient folks here!
So, here’s my questions;
1) are there updates for the system?
2) does the card need to be replaced?
3) can it be updated?
4) is there compatibility with something better like garmin?

I did some searching and the thing I encountered was there’s lots of theory, links to websites, and ideas, but very little hard information from folks that actually did anything. So, if you know something that you have done and it worked please chime in. I believe my system needs to be improved.

One thing my nav system does is pick really crappy routes, like sending me on the truckers route instead of regular traffic bypass routings.
Also the distances it says until a turn or destination are frequently off by .3 to .7 of a mile.

Thanks for any help!

edit: I don’t want suggestions about alternative non Toyota systems. I have a garmin and I also use Google maps on my phone

 

So, has nobody made improvements to the factory navigation or map card?

 

Have you updated Entune lately?
I’ve never update my map card or found anyone else that has first hand knowledge.
Even the dealer shrugged his shoulders.
I did an update on my Entune last year and it made the map routes better and the stereo sounded more crisp.
It may all be an optical illusion due to high hopes, but I think it worked.

 

It’s been a while. I will try this tomorrow

 

2024 Navigation SD Card Update 86271 0E076, SD Navigation Card GPS Map System Compatible with Toyota 4Runner Avalon Camry Corolla Highlander Prius Sequoia Sienna Tacoma Tundra Rav4 | USA & Canada

https://www.amazon.com/dp/B0D6KNLKMF?ref=ppx_yo2ov_dt_b_fed_asin_title

I am about to try to install this, just realized they sent a micro card, so have to doublecheck what size SD card the 2015 Tundra uses.